Used primarily as a crosslinking agent in polymer chemistry, this compound enables the formation of hydrogels and networks by reacting with nucleophilic groups such as amines or thiols. Its bifunctional structure allows for controlled modification of macromolecular architectures, making it valuable in drug delivery systems and tissue engineering scaffolds. It is also employed in the synthesis of functionalized polymers for biomedical applications due to its ability to introduce reactive sulfonate ester groups. Additionally, it serves in the preparation of specialty resins and coatings where water solubility and chemical stability are required.